Creative Green Dog USB HUB 4-Port High-Speed Computer USB Hubs 1 pcs, Product size approximate: L*W*H: 9.5 cm*2.5 cm*5.1 cm. Cable: 60 cm long. Supports USB 2.0 transfer rates up to 480 Mbps. Backwards compatible with 1.1 devices and hosts Convenient and Useful 4 Ports (output); 1 Port (input) Compatible with Win8/Win7/VISTA/XP/Mac 10x and above